The file list does not have anything to do with a chosen export script.
An export script can be seen and edited after pressing Ctrl-E then select the export script and click on the edit button.
e.g.
$filename(csv,utf-16)Titel;Interpret;Album;Track;Jahr;Länge;Größe;Geändert;Pfad;Dateiname;
$loop(%_filename_ext%)%title%;%artist%;%album%;%track%;%year%;%_length_seconds%;%_file_size%;%_file_mod_date%;%_folderpath%;%_filename_ext%;
$loopend()Erstellt am %_date% mit %_app% - dem universellen Tag Editor - http://www.mp3tag.de/
This script also does not export the genre - but if you modify it to become
$filename(csv,utf-16)Titel;Interpret;Album;Track;Jahr;Genre;Länge;Größe;Geändert;Pfad;Dateiname;
$loop(%_filename_ext%)%title%;%artist%;%album%;%track%;%year%;%genre%;%_length_seconds%;%_file_size%;%_file_mod_date%;%_folderpath%;%_filename_ext%;
$loopend()Erstellt am %_date% mit %_app% - dem universellen Tag Editor - http://www.mp3tag.de/
Then it should do.
This is still something that you have to do locally with a text editor.